A classic 1959 Television commercial for the Kodak Brownie Starflash camera, with the ever popular Harriet Nelson. Taken from uncopyright TV episode "Jealous Joe Randolph" (also to be found on this website)
This is a good commercial I uploaded. "Ozzie and Harriet" and many other sitcoms of the time only featured about 4 or 5 minutes of advertising per an episode, compare that with many modern shows, which have around 8 or 10 minutes of advertising AND product placement ("Ozzie and Harriet" featured a little product placement, but it was very subtle and often you'd wouldn't notice it).
Harriet Nelson does a good job at promoting the cameras.